Changeset 31287 in vbox for trunk/src/VBox/Main/MediumAttachmentImpl.cpp

Timestamp:

Aug 2, 2010 12:13:00 PM (15 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

64314

Message:

Initial API changes for resource control (storage/network/cpu)

File:

• trunk/src/VBox/Main/MediumAttachmentImpl.cpp (modified) (3 diffs)

trunk/src/VBox/Main/MediumAttachmentImpl.cpp

@@ -52 +52 @@
     const LONG          lDevice;
     const DeviceType_T  type;
-    bool                fPassthrough : 1;
-    bool                fImplicit : 1;
+    bool                fPassthrough;
+    bool                fImplicit;
+    ULONG               mBandwidthLimit;
 };
 
@@ -132 +133 @@
     m->bd->fImplicit = false;
 
+    /* Default is no limit. */
+    m->bd->mBandwidthLimit = 0;
+
     /* Confirm a successful initialization when it's the case */
     autoInitSpan.setSucceeded();
@@ -272 +276 @@
 }
 
+STDMETHODIMP MediumAttachment::COMGETTER(BandwidthLimit) (ULONG *aLimit)
+{
+    CheckComArgOutPointerValid(aLimit);
+
+    AutoCaller autoCaller(this);
+    if (FAILED(autoCaller.rc())) return autoCaller.rc();
+
+    AutoReadLock alock(this COMMA_LOCKVAL_SRC_POS);
+
+    *aLimit = m->bd->mBandwidthLimit;
+    return S_OK;
+}
+
+STDMETHODIMP MediumAttachment::COMSETTER(BandwidthLimit) (ULONG aLimit)
+{
+    AutoCaller autoCaller(this);
+    if (FAILED(autoCaller.rc())) return autoCaller.rc();
+
+    /* the machine doesn't need to be mutable */
+
+    AutoWriteLock alock(this COMMA_LOCKVAL_SRC_POS);
+
+    if (aLimit != m->bd->mBandwidthLimit)
+    {
+        m->bd.backup();
+        m->bd->mBandwidthLimit = aLimit;
+
+        /* todo: not all storage attachments will support this. */
+    }
+    return S_OK;
+}
+
 /**
  *  @note Locks this object for writing.